Service manual

By convention, processors are placed in the right <REFERENCE>(XMI)
slots, beginning with slot 1. Memories are placed in the middle slots, from
slot A to slot 5 and then slots B and C. A VAXBI adapter, if installed,
occupies slot E. If a processor is failing intermittently and you are working
on a system remotely, you may want to leave the module in the system
temporarily and prevent the operating system from using that processor.
To disable a CPU:
1. Enter console mode.
2. Use the command SET CPU/NOENABLE to remove the processor from
the software configuration.
3. Reboot the operating system.
The console self-test display does not indicate that a CPU has been
disabled. However, the SHOW CPU command reports which CPUs have
been disabled on the /NOENABLED line of its display.
<REFERENCE>(xyp) Scalar Processor 3–5